Computing-machine.



No. 789,409. PATENTED MAY 9, 1905.

F. M. CARROLL.

.COMPUTING MACHINE.

APPLICATION IILED JUNE 14. 1904.

PATENTED MAY 9, 1905.

. F. M. CARROLL. GOMPUTING MACHINE.

APPLICATION IILED JUNE 14. 1004.

PATENTED MAY 9, 1905.

F. M. CARROLL.

COMPUTING MACHINE.

APPLICATION IILED JUNE 14. 1904.

9 SHBETS-SHBBT 3.

BY HIS ATTRNEYS No. 789,409. PATENTED MAY 9, 1905.

F. M. CARROLL. V COMPUTING MACHINE.

APPLICATION IILED JUNE 14. 1904.

No. 789,409. PATENTED MAY 9, 1905. F. M. CARROLL.

OOMPUTNG MACHINE.

A1PLIOATION IILED JUNE 14. 1904.

19 SHEETS-SHEET 5 a W; 5 PAGE BACK SPACE PATENTED MAY 9, 1905.

F. M. CARROLL. COMPUTING MACHINE.

APPLIOATION FILED JUNE 14. 1904.

19 SEEETS-SRBBT 6.

PATENTED MAY 9, 1905.

F. k M. CARROLL. COMPUTING MACHINE.

APPLICATION IILED JUNE 14. 1904.

19 SBEBTS-SEEBT 7.

PATENTED MAY 9, 1905.

P. M. CARROLL.

COMPUTING MACHINE. AIPLIOATION PILED JUN14. 1904.

PATENTED MAY 9, 1905.

F. M. CARROLL.

GOMPUTING MACHINE.

APPLICATION PILED JUNE 14. 1904.

19 SHEETS-SEEET 9.

PATENTED MAY 9, 1905u F. M. CARBOLL. COMPUTING MACHINE.

APPLICATION EILED JUNE 14. 1904.

19 SHEBTS-8HIBT 1 O.

PATENTED MAY 9, 1905.

F. M. CARROLL. COMPUTING MACHINE.

APPLICATION FILED JUNE 14. 1904.

19 SHEETS-SHBBT l1.

PATENTED MAY 9, 1905.

F. M. OARROLL.

COMPUTING MACHINE.

APPLICATION PILED JUNE 14. 1904.

19 SHEETS-SHEET 1Z.

-PTENTED MAY 9, 1905.

F. M. CARROLL.

COMPUTING MACHINE.

APPLICATION IILED JUNE 14. 1904.

19 SEBETS-SHEET l3.

.. Illfllllllllll lII No. 789,409. PATENTED MAY 9, 1905. F. M. CARROLL.

GOMPUTING MACHINE.

APPLICATION FILBD JUNE 14:. 1904.

19 SHEETS-SBEET l4.

No. 789,409. PATENTED MAY 9, 1905. F. M. ARROLL.

COMPUTING MACHINE.

APPLICATION IILED JUNE 14, 1904.

19 SHEETS-SHBET 15 PATENTED MAY 9, 1905.

F. M. CARROLL.

MPUTING MACHINE.

APPLICATION FILED JUNE 14. 1904.

19 SIIEETS-SHEET .18.

PATENTED MAY 9, 1905.

F. M. CARROLL.

COMPUTING MACHINE.

APPLICATION IILBD JUNE 14. 1904.

19 SHIETS-SHBBT 17.

No 789,409. PATENTED MAY 9, 1905.

F. M. OARROLL.

COMPUTING MACHINE.

APPLIOATION I'ILED JUNE 14.1904.

19 SHBETS-SHEET 19 on the controller.

UNITED STATES Patented Ma.y 9, 1905.

PATENT OFFICE.

FRED M. CARROLL, OF NEW HAVEN, CONNEC"ICUT, ASSIGNOR TO EDWARD S. SVVIFT, TRUSTEE, OF NEW HAVEN, CONNECTICUT.

COMPUTING-MACHINE.

SPECIFICATION iorming part of Letters Patent No. 789,409, dated May 9, 1905.

Application filed June 14, 1904. Serial No. 212,700.

and increased speed and capacity; and it consists of certain featnres of construction and comhination hcreinafter described, and particularly referred to in the claims.

The machine shown and dcscrihod in this application as embbdying my invention is designed to be used for adding and subtracting, printing items, printing totals, and printing dates. In sonne embodiments of my invention, however, the printing mechanism may be omitted, also the features which provide l'or subtraction, although adding-machines are preferably adapted for subtraction as well as addition.

This machine also embodies certain features already shown and described in my pending application, Serial No. 51,765, liled March 18, 1901. but in an improved arrangement and com bination, as will be hereinafter explained.

The following is adcScription of my inven tion. reference being had to the accompanying drawings, in which Figure 1 is a front elevation of a machine embod,ving my invention. Fig. 2 is a righthand elevation of the same. Fig. 3 is a leithand elevation of the same. Fig. 4: is a back elevation. Fig. 4 is a plan view with the upper parts removed. section showing the arrangement of various parts. Fig. 5 is a plan view of parts of the vertical stop mechanism. Fig. 5 is a side elevation of that mechanism, partly in section. Fig. 6 is a view of thespring-drnm, controller, winding-segment, and associated parts looking from the right. Fig. 6 is a detail of the controller. Fig. 6"isa pivoted tripping-plate Fig. 6 is a section of the leasing mechanism.

Fig. 5 is a longitudinal l spring-drum. Fig. 6 is a detail of a connecting-link. Fig. 7 is a right-hand view ol the distributing connter shaft and associated gearing. Fig. 7 is a plan view of the same. Fig. 7" is a view of the item-segment cradlelifting mechanisn1. Fig. 7 is a view showing the relation of the rack-bars, item-segments, and accu1nulating-wheels. Fig. 7 is a view of the right-hand cradle-lifting cam. Fig. 8 is a detail view showing the relation et the selectorshaft, the indicatorcylinders, the hacl spacing-key, and other details. Figs. 8and 8 are details showing the stepby-step mechanism of the selector-shaitin difl'erent positions. Fig. 9 is a perspectiv c view showing the word-key and. the date-controlling l ey and associated mechanism. Fig. 9isadctail showingconnections between the date-controlling mechanism and the selector-shaf't. Fig. 9 is a detailed view showing the relations between the stationary column-indicator, the selectorshaft, and the coacting dogs. Fig. 9 is a view showing the selector-shaf't and stop-shifting rods. Fig. 10 is a view showingdetails of the repeating and crasing mechanisms. Fig. 10 shows the parts of Fig. 10 in diflerent relations. Fig. 10 shows the position of certain 01 the parts when the repeat-key is depressed. Fig. 11 shows the connection between the stop-releasing mechanism and its actuating parts. Fig. 11 shows a detail of the resetting-yolze 01 the stop-releasing mechanism. Figs. 11" and 11 show in perspective details of the stop-re- Fig. 12 is a plan view of the accnmulator-whecls. Fig. 12 is a sectional view of two of said wheels. Fig. 12" is a side elevation of the same. Fig. 12 is a plan view of the carrying-wheels and certain coperating parts. Figs. 12, 12, 12, 12", 12, 12, 12", 19 show certain details of the carrying mechanism. Figs. 12 and 12" show dctails of the total-printing mechanism. Fig. 13 shows in perspective details of the zeroprinting mechanism. Fig. 13 shows a rear elevation of the plungers and rack-bars with which the zero-printing mechanism coper ates. Fig. 13 shows a rocking plate in elevated position. Fig. 13 shows a rocking plate in depressed position about to be actu- 

